Clinical trials: Doppler
Fetal Conditions
Early Pregnancy Ultrasound Parameters Including Corpus Luteum Doppler in Prediction of First Trimester Pregnancy Outcome in Spontaneous Pregnancies.
The synthesis of progesterone by corpus luteum is extremely important for the maintenance of normal pregnancy in the first seven weeks.
- Trial name
- NCT07204028
- Where
- Egypt
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Cairo University
Cervical Cancer, Cervical Intraepithelial Neoplasm
The Role of Blood Perfusion in Cervical Cancer, Cervical Intraepithelial Neoplasm and Ovarian Cancer Patients
This study will elucidate the role of 3D transvaginal ultrasound in assessing (1) cervical vascularity and blood flow in patients with cervical cancer and cervical intraepithelial neoplasm, and (2) tumor vascularity and blood…
- Conditions
- Cervical Cancer, Cervical Intraepithelial Neoplasm, Ovarian Cancer
- Trial name
- NCT07385976
- Testing
- Doppler ultrasound
- Where
- 2 sites in Taiwan
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Far Eastern Memorial Hospital
Anemia During Pregnancy, Anemia Complicating Pregnancy
Middle Cerebral Artery Doppler( MCA-PSV) & Perinatal Outcome
can we predict neonatal outcome by the results of 3rd trimester MCA Doppler Indices In pregnant women with anemia?? --- the aim of this study is to evaluate values of MCA Doppler indices in determining fetal outcome in pregnant…
- Conditions
- Anemia During Pregnancy, Anemia Complicating Pregnancy, Anemia
- Trial name
- NCT07135635
- Testing
- Middle Cerebral Artery doppler
- Where
- Egypt
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Sohag University
Pregnancy Related, Fetal; Circulation
Doppler Ultrasonographic Assessment of Fetal Internal Thoracic Artery Indexes
The aim of this study is to assess the feasibility of visualizing the internal thoracic artery (ITA), establishing the normogram for ITA pulsatility index (PI), resistance index (RI) and acceleration/ejection time (AT/ET) at…
- Trial name
- NCT04686240
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Ankara City Hospital Bilkent
Dental Trauma
Laser Doppler Flowmetry in Assessing the Vitality of Traumatised Teeth
Teeth injuries are considered one of the most challenging events that occur in dentistry, especially in children. After an injury, there is a possibility that the blood supply to the tooth may become affected and compromised…
- Trial name
- NCT03005197
- Testing
- Laser Doppler Flowmetry
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- University of Leeds
Exchange Transfusion
MCA Doppler Studies in Neborns Following Exchange Transfusion
The purpose of this study is to study MCA Doppler before and after exchange transfusion in newborns.
- Trial name
- NCT00862485
- Where
- Israel
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Rambam Health Care Campus
Stillbirth, Neonatal Death
Intermittent Auscultation Using Handheld Doppler: a Randomized Controlled Trial Comparing Perinatal Outcomes in Uganda
A novel handheld Doppler has been developed which is rugged and is powered only by a hand crank. This study aims to test the use of this Doppler versus the Pinard horn to monitor the fetal heart rate in labour in a hospital…
- Trial name
- NCT02273037
- Testing
- Fetal heart rate Doppler, Partograph
- Where
- 2 sites in Canada, Uganda
- Volunteers
- 1,987 people, healthy volunteers welcome
- Sponsor
- The Hospital for Sick Children
Arteriovenous Fistula
Color Doppler Ultrasonography in Prediction of Arteriovenous Fistula Maturation in Hemodialysis Patients
The transplant is the definitive treatment of renal insufficiency, in our days. While waiting for it, the arteriovenous fistula surgery is standard procedure.
- Trial name
- NCT03171701
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Assiut University
Preterm Birth, Prenatal Care Late
This Study Was to Investigate the Efficacy of Fetal Right Heart Doppler Findings in Determination of Pulmonary Maturity
Objective: The aim of this study was to investigate the efficacy of fetal right heart doppler findings in determination of pulmonary maturity.
- Conditions
- Preterm Birth, Prenatal Care Late, Preterm Labor
- Trial name
- NCT04296591
- Testing
- fetal heart doppler findings
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- Karadeniz Technical University
Glaucoma, Open-Angle, Circadian Rhythm
Circadian Variations in Ocular Blood Flow in Glaucomatous and Normal Eyes
After focusing many years only on intraocular pressure (IOP) as the primary risk factor, recently the impact of ocular blood flow is getting more consideration for the pathophysiology of glaucoma.
- Conditions
- Glaucoma, Open-Angle, Circadian Rhythm, Intraocular Pressure, Regional Blood Flow
- Trial name
- NCT00707226
- Where
- Austria
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Medical University of Vienna
Neonatal Sepsis, Markers
Tissue Doppler Echocardiographic Assessment of Cardiac Function in Neonatal Sepsis
1. To assess myocardial function in neonates with sepsis using tissue doppler echocardiography. 2. To assess sepsis induced cardiac dysfunction. 3.
- Trial name
- NCT07572916
- Testing
- cardiac troponin, and blood culture
- Where
- Egypt
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Assiut University
Other Acute Illnesses Presenting to the Hospital, Heart Failure
Evaluation of Implementation of a National Point-of-Care Ultrasound Training Program
This VA QUERI Partnered Evaluation Initiative will evaluate the impact of an immersive Point-of-care Ultrasound (POCUS) Training Course on provider skill acquisition and retention; the frequency of POCUS use by trained providers…
- Conditions
- Other Acute Illnesses Presenting to the Hospital, Heart Failure, Pneumonia, Deep Venous Thrombosis
- Trial name
- NCT03296280
- Where
- United States
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Premature Birth
Cerebral Blood Flow Parameters and Neurobehavioral Development in Infants at Term Age
Although several studies have contrasted the hemodynamics of cerebral arteries using cranial Doppler ultrasound between full-term and preterm infants, the assessments were mostly conducted in the first days of life.
- Trial name
- NCT00676247
- Where
- Taiwan
- Volunteers
- 1 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Perinatal Mortality, Neonatal Morbidities
Machine Learning From Fetal Flow Waveforms to Predict Adverse Perinatal Outcomes
The aim of this study is to get a proof of concept for using a computational model of fetal haemodynamics, combined with machine learning based on Doppler patterns of the fetal cardiovascular, cerebral and placental flows, to…
- Trial name
- NCT03398551
- Volunteers
- 525 people, healthy volunteers welcome
- Sponsor
- Aga Khan University
Right-to-left Shunt, Migraine
Registry of Right-to-left Shunt Detection by Contrast-enhanced Transcranial Doppler in Chinese Population
The purpose of the study is to evaluate the prevalence and extent of right-to-left shunt (RLS) in Chinese migraineurs, and the morbidity of silent cerebral infarction in migraineurs.
- Conditions
- Right-to-left Shunt, Migraine, Cerebral Infarction
- Trial name
- NCT02425696
- Where
- China
- Volunteers
- 1,100 people, healthy volunteers welcome
- Sponsor
- Yingqi Xing
Septic Shock, Echocardiography Guided Fluid Management
Prediction of Fluid Responsiveness in Paediatric Patients With Septic Shock Using Carotid Doppler Ultrasonography and Echocardiography
The goal of this study is to evaluate the role of carotid Doppler and Echocardiography as a predictor of fluid responsiveness in paediatric patients with septic shock.
- Trial name
- NCT07136532
- Testing
- echocardiography
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Pediatric Hypertension, Primary Hypertension
Endothelial Extracellular Vesicles as Biomarkers of Endothelial Activation in Children With Newly Diagnosed Hypertension
Childhood hypertension is associated with early endothelial dysfunction and an increased risk of future cardiovascular disease. Endothelial extracellular vesicles (EEVs) have emerged as promising biomarkers of endothelial…
- Conditions
- Pediatric Hypertension, Primary Hypertension, Endothelial Dysfunction
- Trial name
- HYPER-endoEV-c (NCT07728643)
- Where
- Croatia
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Josip Juraj Strossmayer University of Osijek
Hypotension (MeSH: D007022)
Carotid Artery Blood Flow, Blood Pressure, and Cardiac Output During Anesthesia in Children Aged 0-5 Years
Blood pressure is routinely monitored during anesthesia in children, but blood pressure alone may not accurately reflect blood flow to vital organs.
- Trial name
- CARFLOW (NCT07847203)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Uterine Artery Flow
Uterine Artery Doppler Changes
In uncomplicated pregnancies, the uterine spiral arteries undergo a series of structural changes that result in a low resistance in the uterine arteries as pregnancy progresses.
- Trial name
- NCT03064698
- Testing
- Post-partum Doppler ultrasound
- Where
- Canada
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- Unity Health Toronto
Umbilical Doppler
Correlation Between Umbilical Resistance Index and Fetal Growth
The aim of our study was to investigate the correlation between the umbilical resistance index and weight gain during the third trimester of low-risk pregnancies.
- Trial name
- NCT02842346
- Testing
- ultrasonography
- Volunteers
- 77 people, healthy volunteers welcome
- Sponsor
- University Tunis El Manar